rudimentary abstract syntax type checker and solver in PGF

2008-10-14 14:34:08 +00:00
parent ec2d7e2299
commit e4dc63f665
6 changed files with 193 additions and 8 deletions
--- a/src/PGF/Data.hs
+++ b/src/PGF/Data.hs
@@ -73,6 +73,7 @@ data Expr =
 | EMeta  Int                       -- ^ meta variable
 | EVar   CId                       -- ^ variable or function reference
 | EEq [Equation]                   -- ^ lambda function defined as a set of equations with pattern matching
+ | EPi CId Expr Expr                -- ^ dependent function type
  deriving (Eq,Ord,Show)

 data Term =